Potential datasets to use/research

[Yash-10]

Even though we are initially focusing on the dataset inside the Datasets directory, we could consider replacing/adding or research about some datasets that have more trials from different subjects, for a more comprehensive study. On a higher level, the bigger the dataset, the better, but I think it may not always hold.

For example, see https://www.nature.com/articles/sdata2018211. They say a "large" dataset, so something similar can be discussed.

Note that we are sticking to motor-imagery datasets for now.